Calculating your net home sale proceeds involves many subtractions: home preparation expenses, real estate agent commission, escrow fees, title search insurance, recording fees, and on, and on, and on. Closing costs for Washington sellers can seem endless, but if you learn what closing costs sellers are responsible for ahead of time, the final tally won’t come as such a shock. We spoke with a top local real estate agent and dug through state laws to round up all of the closing costs sellers are on the hook for at the end of the sale. It’s expensive to sell a house and even more so in Washington state. HomeLight’s recent study reveals that it costs $59,200 on average to sell a $800,000 home. This total cost includes: Seattle’s high total closing cost includes:The average cost to sell a home in Seattle is $59,200